| Subject | French | German |
| transp. | dimension effectivedes grains | wirkliche Korngröße |
| tech. | dimension effective | Istmaß |
| piez. | dimension Z effective | effektives Z-Maß |
| piez. | dimension Z effective brute | effektives Z-Maß |
| magn. | dimensions effectives d'un circuit magnétique | effektive Abmessungen eines magnetischen Kreises |
| el. | dimensions effectives d'un circuit magnétique | effektive Kernkenngrößen eines magnetischen Kreises |